Engine suspension mounting bracket, engine compartment edge beam assembly and automobile

Abstract

The utility model discloses an engine suspension mounting bracket, an engine compartment edge beam assembly and an automobile. The engine suspension mounting bracket comprises a bracket outer plate, a projection welding nut, a bracket reinforcing plate and a supporting pipe, the section of the support outer plate is n-shaped, a first through hole is formed in the protruding top of the support outer plate, the section of the support reinforcing plate is n-shaped, a second through hole is formed in the protruding top of the support reinforcing plate, the upper surface of the protruding top of the support reinforcing plate is fixedly connected with the lower surface of the protruding top of the support outer plate, and the second through hole right faces the first through hole. The upper surfaces of the two horizontal bent edges of the support reinforcing plate are fixedly connected with the two horizontal bent edges of the support outer plate respectively. The projection welding nut is welded to the lower surface of the top of the protrusion of the support reinforcing plate and corresponds to the second through hole, and the supporting pipe is arranged outside the projection welding nut in a sleeving mode and fixedly connected with the lower surface of the top of the protrusion of the support reinforcing plate. The rigidity of the suspension mounting position on the vehicle body can be improved.

Description

Technical Field

[0001] The utility model belongs to the field of automobile body parts, and particularly relates to an engine mount bracket, an engine compartment side beam assembly and an automobile. Background Technique

[0002] An automobile engine is mounted on the vehicle body through mounts, and vibrations will be generated during operation. Engine mounts can reduce and control the transmission of engine vibrations. In order to reduce the transmission of engine vibrations to the vehicle body and improve the riding comfort of passengers, the mount installation positions on the vehicle body need to have high stiffness.

[0003] CN203995636U discloses an engine mount bracket. Its second mount bracket is directly welded on the front wheel housing assembly, and the projection welding nut is directly welded on the second mount bracket. The engine mount is fixedly connected to the projection welding nut through a hexagon flange bolt. The support stiffness of the single second mount bracket and the projection welding nut is insufficient, and the vibrations of the engine are easily transmitted to the vehicle body. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an engine mount bracket, an engine compartment side beam assembly and an automobile, so as to improve the stiffness of the mount installation positions on the vehicle body while meeting the physical matching installation of the engine mounts.

[0005] In the first aspect, the engine mount bracket of the utility model includes a bracket outer plate, a projection welding nut, a bracket reinforcing plate and a support tube; the cross section of the bracket outer plate is in a "C" shape, a first through hole is opened at the top of the projection of the bracket outer plate, the cross section of the bracket reinforcing plate is in a "C" shape, a second through hole is opened at the top of the projection of the bracket reinforcing plate, the upper surface of the top of the projection of the bracket reinforcing plate is fixedly connected to the lower surface of the top of the projection of the bracket outer plate, the second through hole is aligned with the first through hole, and the upper surfaces of the two horizontal bent edges of the bracket reinforcing plate are respectively fixedly connected to the two horizontal bent edges of the bracket outer plate; the projection welding nut is welded on the lower surface of the top of the projection of the bracket reinforcing plate and corresponds to the second through hole, and the support tube is sleeved outside the projection welding nut and is fixedly connected to the lower surface of the top of the projection of the bracket reinforcing plate.

[0006] Preferably, a cavity is formed between the side wall of the projection of the bracket reinforcing plate and the side wall of the projection of the bracket outer plate, and the cavity can further increase the strength and stiffness of the engine mount bracket and reduce the transmission of vibrations.

[0007] Preferably, the height of the support tube is greater than the height of the projection of the bracket reinforcing plate. The part of the support tube protruding from the two horizontal bent edges of the bracket reinforcing plate can extend into the mount installation hole of the inner plate of the engine compartment side beam and be welded to the hole wall of the mount installation hole. The welding of the support tube to the inner plate of the engine compartment side beam further improves the stiffness of the engine mount bracket.

[0008] Preferably, the outer plate of the bracket is provided with reinforcing ribs, which can increase the strength of the outer plate of the bracket.

[0009] Preferably, the bracket outer plate has overlapping edges that can be overlapped and welded with the vertical portions of the engine compartment side beam inner plates, thereby making the connection between the bracket outer plate and the engine compartment side beam inner plates more secure.

[0010] Preferably, the inner diameter of the support tube is 0.5 mm larger than the outer diameter of the flange of the projection welding nut.

[0011] Preferably, the diameter of the first through hole is greater than the diameter of the second through hole, and the diameter of the second through hole is greater than the inner diameter of the projection welding nut.

[0012] Preferably, the raised top upper surface of the bracket reinforcement plate and the raised top lower surface of the bracket outer plate are spot welded, the two horizontal bent edges of the bracket reinforcement plate are spot welded to the two horizontal bent edges of the bracket outer plate respectively, and the support tube and the raised top lower surface of the bracket reinforcement plate are welded by carbon dioxide shielded welding.

[0013] In the second aspect, the engine compartment side beam assembly described in the utility model includes an engine compartment side beam inner plate and the above-mentioned engine suspension mounting bracket, and the engine suspension mounting bracket is welded to the engine compartment side beam inner plate. Specifically, the lower surface of the two horizontal bent edges of the bracket reinforcement plate is overlapped and welded with the horizontal part of the engine compartment side beam inner plate, the parts of the two horizontal bent edges of the bracket outer plate that are not connected to the bracket reinforcement plate are overlapped and welded with the horizontal part of the engine compartment side beam inner plate, the overlapped edges are overlapped and welded with the vertical part of the engine compartment side beam inner plate, and the part of the support pipe protruding from the two horizontal bent edges of the bracket reinforcement plate extends into the suspension mounting hole of the engine compartment side beam inner plate and is welded to the hole wall of the suspension mounting hole.

[0014] In a third aspect, the automobile described in the utility model includes the above-mentioned engine compartment side beam assembly.

[0015] The utility model has the following effects:

[0016] (1) A bracket reinforcement plate and a support tube are added. The projection welding nut is welded on the bracket reinforcement plate. The support tube is sleeved outside the projection welding nut and fixedly connected to the bracket reinforcement plate. The bracket reinforcement plate is fixedly connected to the bracket outer plate. The support tube increases the strength and rigidity of the engine suspension connected to the projection welding nut through bolts. The bracket reinforcement plate increases the strength and rigidity of the engine suspension mounting bracket. During assembly, the bracket reinforcement plate and the support tube are fixedly connected to the inner plate of the engine compartment side beam. While meeting the physical matching installation of the engine suspension, the rigidity of the suspension installation position on the vehicle body is improved, meeting the higher installation rigidity requirements of the engine suspension.

[0017] (2) The convex weld nut is welded on the bracket reinforcement plate, and the support tube is fixedly connected to the bracket reinforcement plate, which avoids the problem of uneven top mounting surface of the bracket outer plate due to overburning of carbon dioxide shielded welding, which in turn causes the engine suspension installation torque to attenuate.

[0018] (3) Both the support tube and the projection welding nut are standardized parts and can be purchased in bulk on the market. The two can be assembled with the bracket reinforcement plate through mature welding technology and can be used without the need for special forging technology and additional machining technology, which can effectively reduce production costs and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the engine suspension mounting bracket in an embodiment of the utility model.

[0020] Figure 2 for Figure 1 AA section view in.

[0021] Figure 3 This is a structural schematic diagram of the engine suspension mounting bracket installed on the inner plate of the engine compartment side beam.

[0022] Figure 4 for Figure 3 BB cross-section diagram in.

[0023] Figure 5 It is a structural schematic diagram of the engine suspension installed on the engine compartment side beam assembly.

[0024] In the figure, 1-bracket outer plate, 2-convex welding nut, 3-bracket reinforcement plate, 4-support tube, 5-cavity, 6-engine compartment side beam inner plate, 7-engine suspension, 8-bolt, 11-first through hole, 12-reinforcement rib, 13-lap edge, 31-second through hole. DETAILED DESCRIPTION

[0025] In order to more thoroughly understand the features and technical contents of the embodiments of the present invention, the implementation of the embodiments of the present invention is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not intended to limit the present invention.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the field of the present invention. The terms used herein are only for the purpose of describing the embodiments of the present invention and are not intended to limit the present invention.

[0027] In the following description, reference is made to "some embodiments", which describe a subset of all possible embodiments. However, it is understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0028] As Figures 1 to 5 shown, the engine mount bracket in the embodiment of the present utility model includes a bracket outer plate 1, a projection welding nut 2, a bracket reinforcing plate 3, and a support tube 4. The bracket outer plate 1 and the bracket reinforcing plate 3 are both sheet metal parts formed by integral stamping. The cross-section of the bracket outer plate 1 is in a "C" shape. A first through hole 11 is provided at the top of the projection of the bracket outer plate 1. The cross-section of the bracket reinforcing plate 3 is in a "C" shape. A second through hole 31 is provided at the top of the projection of the bracket reinforcing plate 3. The upper surface of the top of the projection of the bracket reinforcing plate 3 is welded to the lower surface of the top of the projection of the bracket outer plate 1, and the second through hole 31 is aligned with the first through hole 11. As an example, the diameter of the second through hole 31 is smaller than the diameter of the first through hole 11. The upper surfaces of the two horizontal bent edges of the bracket reinforcing plate 3 are respectively welded to the two horizontal bent edges of the bracket outer plate 1, and a cavity 5 is formed between the side wall of the projection of the bracket reinforcing plate 3 and the side wall of the projection of the bracket outer plate 1. In addition, reinforcing ribs 12 are provided on the bracket outer plate 1, and the bracket outer plate 1 has a lapping edge 13 that can be lapped and welded to the vertical part of the inner plate 6 of the engine compartment side beam. In some embodiments, the welding here is spot welding. By spot welding two layers of sheet metal, the problem of torque attenuation caused by uneven installation surface due to overburning in carbon dioxide shielded welding can be effectively avoided.

[0029] The projection welding nut 2 is welded to the lower surface of the top of the projection of the bracket reinforcing plate 3 by a projection welder and corresponds to the second through hole 31. As an example, the inner diameter of the projection welding nut 2 is smaller than the diameter of the second through hole 31. The support tube 4 is sleeved outside the projection welding nut 2 and welded to the lower surface of the top of the projection of the bracket reinforcing plate 3. In some embodiments, the mechanical grade of the projection welding nut 2 is grade 10, the support tube 4 is made of material Q235, the inner diameter of the support tube 4 is 27 mm, the outer diameter of the flange of the projection welding nut 2 is 26.5 mm, and the welding method of the support tube 4 and the bracket reinforcing plate 3 is carbon dioxide shielded welding. The projection welding nut 2 and the support tube 4 are both standardized parts and can be purchased in batches on the market.

[0030] In some embodiments, the height of the support tube 4 is greater than the height of the projection of the bracket reinforcing plate 3. The part of the support tube 4 protruding from the two horizontal bent edges of the bracket reinforcing plate 3 can extend into the mount hole of the engine compartment side beam inner plate 6 and be welded to the hole wall of the mount hole. As an example, the welding here can be carbon dioxide shielded welding.

[0031] As an example, the assembly process of the above-mentioned engine suspension mounting bracket is as follows: first, the projection welding nut 2 is welded to the lower surface of the raised top of the bracket reinforcement plate 3 by a projection welding machine, and the center hole of the projection welding nut 2 is opposite to the second through hole 31; then, the support tube 4 is directly sleeved on the outside of the projection welding nut 2, and is welded to the lower surface of the raised top of the bracket reinforcement plate 3 by carbon dioxide shielded welding; finally, the raised top upper surface of the bracket reinforcement plate 3 is spot welded to the raised top lower surface of the bracket outer plate 1, and the upper surfaces of the two horizontal bent edges of the bracket reinforcement plate 3 are respectively spot welded to the two horizontal bent edges of the bracket outer plate 1, thereby forming an engine suspension mounting bracket.

[0032] like Figure 3 , Figure 4 As shown, the engine compartment side beam assembly in the embodiment of the utility model includes an engine compartment side beam inner plate 6 and the above-mentioned engine suspension mounting bracket. The above-mentioned engine suspension mounting bracket is welded to the engine compartment side beam inner plate 6, and the specific method is: first, overlap-weld the lower surface of the two horizontal bent edges of the bracket reinforcement plate 3 with the horizontal part of the engine compartment side beam inner plate 6, overlap-weld the parts of the two horizontal bent edges of the bracket outer plate 1 that are not connected to the bracket reinforcement plate 3 with the horizontal part of the engine compartment side beam inner plate 6, and overlap-weld the overlap edge 13 with the vertical part of the engine compartment side beam inner plate 6. As an example, the overlap welding here is spot welding. Then, the part of the support tube 4 protruding from the two horizontal bent edges of the bracket reinforcement plate 3 is extended into the suspension mounting hole of the engine compartment side beam inner plate 6, and is welded to the hole wall of the suspension mounting hole by carbon dioxide shielded welding.

[0033] like Figure 5 As shown, the bolt 8 passes through the first through hole 11 and the second through hole 31 and is screwed to the projection welding nut 2, so that the engine suspension 7 is installed on the engine compartment side beam assembly, thereby realizing the installation of the engine suspension 7 on the vehicle body.

[0034] An embodiment of the utility model further provides a car, which comprises the above-mentioned engine compartment side beam assembly.

[0035] The above description is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention.

Claims

1. An engine suspension mounting bracket, comprising a bracket outer plate (1) and a projection welding nut (2), characterized in that: It also includes a bracket reinforcing plate (3) and a support tube (4); the cross-section of the bracket outer plate (1) is in a "C" shape. A first through hole (11) is provided at the protruding top of the bracket outer plate (1). The cross-section of the bracket reinforcing plate (3) is in a "C" shape. A second through hole (31) is provided at the protruding top of the bracket reinforcing plate (3). The upper surface of the protruding top of the bracket reinforcing plate (3) is fixedly connected to the lower surface of the protruding top of the bracket outer plate (1). The second through hole (31) is aligned with the first through hole (11). The upper surfaces of the two horizontal bent edges of the bracket reinforcing plate (3) are respectively fixedly connected to the two horizontal bent edges of the bracket outer plate (1); the projection welding nut (2) is welded to the lower surface of the protruding top of the bracket reinforcing plate (3) and corresponds to the second through hole (31). The support tube (4) is sleeved outside the projection welding nut (2) and is fixedly connected to the lower surface of the protruding top of the bracket reinforcing plate (3).

2. The engine suspension mounting bracket according to claim 1, characterized in that: A cavity (5) is formed between the protruding side wall of the bracket reinforcing plate (3) and the protruding side wall of the bracket outer plate (1).

3. The engine suspension mounting bracket according to claim 1, characterized in that: The height of the support tube (4) is greater than the protruding height of the bracket reinforcing plate (3). The part of the support tube (4) protruding from the two horizontal bent edges of the bracket reinforcing plate (3) can extend into the suspension mounting hole of the inner plate (6) of the engine compartment side beam and is welded to the hole wall of the suspension mounting hole.

4. The engine suspension mounting bracket according to claim 1, characterized in that: Reinforcing ribs (12) are provided on the bracket outer plate (1).

5. The engine suspension mounting bracket according to any one of claims 1 to 4, characterized in that: The bracket outer plate (1) has a lapping edge (13) that can be lapped and welded to the vertical part of the inner plate (6) of the engine compartment side beam.

6. The engine suspension mounting bracket according to claim 5, characterized in that: The inner diameter of the support tube (4) is 0.5 mm larger than the outer diameter of the flange of the projection welding nut (2).

7. The engine suspension mounting bracket according to claim 5, characterized in that: The diameter of the first through hole (11) is greater than the diameter of the second through hole (31), and the diameter of the second through hole (31) is greater than the inner diameter of the projection welding nut (2).

8. The engine suspension mounting bracket according to claim 7, characterized in that: The upper surface of the protruding top of the bracket reinforcing plate (3) is welded to the lower surface of the protruding top of the bracket outer plate (1) by spot welding. The two horizontal bent edges of the bracket reinforcing plate (3) are respectively welded to the two horizontal bent edges of the bracket outer plate (1) by spot welding. The support tube (4) is welded to the lower surface of the protruding top of the bracket reinforcing plate (3) by CO2 shielded welding.

9. An engine compartment side beam assembly, comprising an engine compartment side beam inner plate (6), characterized in that: It also includes an engine mount bracket as described in any one of claims 5 to 8. The lower surfaces of the two horizontal bent edges of the bracket reinforcing plate (3) are lapped and welded to the horizontal part of the inner plate (6) of the engine compartment side beam. The parts of the two horizontal bent edges of the bracket outer plate (1) that are not connected to the bracket reinforcing plate (3) are lapped and welded to the horizontal part of the inner plate (6) of the engine compartment side beam. The lapping edge (13) is lapped and welded to the vertical part of the inner plate (6) of the engine compartment side beam. The part of the support tube (4) protruding from the two horizontal bent edges of the bracket reinforcing plate (3) extends into the suspension mounting hole of the inner plate (6) of the engine compartment side beam and is welded to the hole wall of the suspension mounting hole.

10. An automobile, characterized in that: It includes an engine compartment side beam assembly as described in claim 9.

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